I searched for the photos for comparison purposes. They do appear to be the same person.
http://americablog.blogspot.com/aol.jpg
http://americablog.blogspot.com/gannonmult.jpg
There is some similarity in the faces and the bald/shaved heads, but until you see a full picture of Gannon, you aren't going to be able to tell. Do the bodies match? Can you tell from three head shots?